Fluid discharge nozzle assembly
AssigneeCrash Rescue Equipment Service, Inc.
InventorRobert G. Relyea
Life of this patent
Estimating the term…
Abstract
A fluid discharge nozzle assembly that has both a piercing nozzle for fighting fires behind a wall member and a foam/spray nozzle for applying fire-retardant fluid to an open fire. The piercing nozzle is movable only in a vertical plane. The foam spray nozzle is movable in both the vertical plane with the piercing nozzle and in a direction perpendicular to the vertical plane so that, when the piercing nozzle is to be used, the foam/spray nozzle is movable to a position perpendicular to the longitudinal axis of the piercing nozzle to provide maximum clearance of the piercing nozzle during use of the piercing nozzle.
Claims8
In an aerial boom system for a fire-fighting vehicle that has a discharge nozzle assembly mounted on the outer end of an aerial boom and a fluid conduit for supplying fire-retardant fluid to the nozzle assembly, the fluid discharge nozzle assembly enhancing the ability to extinguish fire within an enclosure and comprising:
- an elongated hollow piercing nozzle mounted on the outer end of said aerial boom with its longitudinal axis in a first position essentially parallel to the longitudinal axis of said aerial boom and coupled to the fluid conduit, said piercing nozzle having movement only in a vertical plane from its first position and having at least one orifice therein for expelling said fire-retardant fluid;
- an elongated foam/water nozzle pivotally mounted on the outer end of the boom for movement between a first position with its longitudinal axis essentially parallel to and spaced vertically from the longitudinal axis of said piercing nozzle to a second position essentially perpendicular to its first position;
- a switch controlled valve assembly for selectively coupling said fluid in said fluid conduit either to said piercing nozzle or to said foam/water nozzle when a first switch is in a first position or a second position, respectively;
- and
- first motor means for driving said foam/water nozzle from its first position to its second position, said motor means being coupled to said valve assembly control switch such that, when said first switch is in said first position, said valve assembly couples fluid to said piercing nozzle and said motor means is automatically energized to move said foam/water nozzle to its second position with its longitudinal axis essentially perpendicular to the longitudinal axis of said piercing nozzle.
In an aerial boom system for a fire-fighting vehicle and having a fluid discharge nozzle assembly mounted on the outer end of an aerial boom with a fluid conduit for supplying a fire-retardant fluid to the nozzle assembly, an improved fluid discharge nozzle assembly comprising:
- an elongated nozzle having a hollow piercing end, said piercing nozzle being coupled to the fluid conduit and having at least one orifice therein for expelling said fire-retardant fluid, said nozzle having use in penetrating a wall member to extinguish a fire behind said wall;
- first pivotable mounting means on the outer end of said boom for supporting the hollow piercing nozzle for selective pivotal movement in a vertical plane only;
- second pivotable mounting means coupled to the first pivotable mounting means for selective pivotal movement only in a direction perpendicular to the longitudinal axis of said elongated piercing nozzle;
- and
- an elongated fluid spray nozzle mounted on said second pivotable mounting means with its longitudinal axis in a first position essentially parallel to the longitudinal axis of said elongated piercing nozzle, said second pivotable mounting means enabling said elongated spray nozzle to be moved from its first position to a second position essentially perpendicular to its first position to be as far as possible away from said hollow piercing end when said piercing nozzle is to be used.
Dependencies are inferred from the claim text.